Skip Navigation
Johns Hopkins Bloomberg School of Public HealthCAAT

Johns Hopkins University
Center for Alternatives to Animal Testing

We believe the best science is humane science. Our programs seek to provide a better, safer, more humane future for people and animals. To learn more about CAAT and the 3Rs, visit our About Us page. And consider supporting our mission.


promo 1

CAAT News and Upcoming Events

News and upcoming events sponsored by CAAT, CAAT-Europe, and the Transatlantic Think Tank for Toxicology (t4).

Videos: COVID-19: A Brain Disease?
How Lab-grown "Mini-Brains" Can Be Infected with COVID-19
With CAAT Director Thomas Hartung
From the Euroscience Open Forum 2020

Call for Proposals: 2021 Reduction and Refinement Award

Centennial Celebration of Hildegard Doerenkamp
Free Webinar
November 9, 2020 • 10am EST

Animals, Climate Change, and Global Health Webinar:
Animals in Crises
November 11, 2020
8am - 10:30am EST

Pan-American Conference for Alternative Methods
May 12-14, 2021
Windsor, Ontario


promo 2


CAAT and CAAT-Europe promise sound scientific synergy involving experts from both sides of the Atlantic to promote the implementation of human-relevant alternative approaches, the advancement of research, and the dissemination of the 3Rs.

Thomas Hartung and Marcel Leist Receive Ursula Händel Animal Welfare Prize 2020 for Alternative Methods to Animal Experiments.

5th International Conference on Alternatives for Developmental Neurotoxicity (DNT) Testing
Konstanz, Germany
Tentatively Rescheduled for October/November 2020
Please Sign Up for our CAATwalk Newsletter for Updates

Altertox Academy: 2020 Training Courses

CAAT-Europe is housed at the University of Konstanz, Germany.


promo 3

From CAATwalk

Sign up for our CAATwalk Newsletter for the latest news about our activities! View the latest CAATwalk Newsletter (October 23, 2020)

Humane Science Course
Connect with Us
Make a Gift